Coal or rock drill.



No. 683,628. Patented ont. i, 190|.

|. wANTLlNG. y

COAL DR ROCK DRILL,

Application med .mm s, 1901.1` (No Model.) 2 Sheets-Sheet I.

- 7 /fw' ///v///// f 44 Patened Ust. l, |901. I. WANTLING.

CUAL OR ROCK DRILL.

.Application filed June 8, 1901.1

2 Sheets-Sheet 2.

(No Model.)

4 TF ---L C l/ Z UNITED STATES.

wreNTY OFFICE.

ISAAC WANTLING, OF PEORIA, ILLINOIS.

.coALl'poR ROCK DRILL.;

SPECIFICATION forming part of Letters PatentNo. 683,628, dated October1, 1901- Applieetion filed June 8, 1901.

provementsin Coal or Rock Drills; and I doV hereby declare that thefollowing is a full,

clear, and exactdescription of the invention,

which will enable others skilled in the art to x .l which it appertainsto make and use the same.

This invention has reference to coal or rock drills, and especially tothat class of drill known as a grip-drill. I

. The object which I have in View is to provide a drill comprising aboxing of two hinged sections with a depending seinicircular bodyportion having a notched edge, and a gripbar attachment-havin g apivotal relation with the lower section of the hinged boxing and 2osupporting a gripbar arranged.to be locked to'said attachment.

The invention consists, further, of anancher, to which the forward endof the grip-bar maybe detachably secured for supporting the same, saidanchor purposed to be first driven into the material to be worked andthen attaching the grip-bar thereto, forming a supv port for the drilland holding the auger thereof to its work.

3o Theinvention consists in various details of construction andarrangement of parts hereinafter more fully described, and pointed out4in the appended claims, due reference being y had to the accompanyingdrawings, forming a part of this specification, in which- Figure I is adrill, shown in elevation, embodying my improvements. Fig. 2 shows aplan, enlarged, of the boxing and grip-bar attachment. Fig. 43 is anelevation of Fig. 2.'

4o Fig. 4 isa side elevation of one side of Fig. 2. Fig. 5 shows across-section of the grip-bar attachment. Fig. 6 vis a perspective Viewof the anchor. Fig. 7 is a cross-section through the same, showingcertain details; and Fig.

8 is an elevation', partly in section, of the support for the rear endof the grip-bar.

In the drawings like numerals refer to corresponding parts throughoutthe ligures The drill comprises two half-boxings I and 5o 2, hingedtogether at 3, the n ut thereof formed of semicircular threaded liningssuitably secured inthe half-boxings. The'boxing 2 has Serial No. 63,717.(No-model.)

the laterally-extended arm 4 with tubular bearing 5 arranged to supportpower mechanism, which comprises a stem journaled in the bearingcarrying a bevel-gear 6, intermeshing with a bevel-gear 7, carried bythe thread-bar 8, and 9 is a crank for actuating f thejthread barthrough such power mechanism.

Depending from the lower half-boxing I provide a semicircular extensionl0 anda tubular bearing l1, said bearing arranged transversely to themovement of the thread-bar, and 12is an aperture therein. Thissemicircular extension 10 of the boxing is arranged in an arc whoseradius is struck from the center ofthe aperture I2, and the lower edgeor face ofthe extension is provided with notches, as 13, which aresubstantially V-shaped for a purpose to be described.

14 is a yoke having'a rectangular body p0rtion 15, with a rectangularopening 16 through the same, and 1 7 shows diverging arms of the yokewith apertures 18. This yoke is arranged to span the extended and flaredportion of the lower half-boxin g and be attached thereto by means of apin or similar device, which is slipped through the apertures I8 andtubular bearing Il of the boxing. The yoke is designed to carry agrip-bar I9, which in this instance is a hollow' rectangular bar in sizeadapted to 'fit snugly the rectangular opening 1G in the yoke, and oneedge of the bar is provided with a series of serrations 20, as shown.Thus it is that when the bar is slipped through the opening IG and theyoke is made to span the lower half-boxing, substantially as isillustrated in Fig. 3, a yokepin 21, having the portions 22 and 23, isused .for locking not only'the yoke to the boxing,

butthe grip-bar to the yoke. The extension 22 of the yoke-pin 2l isslipped through the extensions I7 and tubular bearing I1, and theextension 23 of said pin is slipped through an aperture 24, arrangedinthe yoke, which cuts through the rectangular body in such a mannerthat the pin 23 will engage a serration of thegrip-bar and a'notch inthe lower edge of the sem'icircular extension of the boxing. Theextension 23 of the yoke-pin in cross-section has the roundedlowerportion 25 and the V-shaped upper portion 26. This IOO arrangementwillpermit of a greater number of notches in the extension 10 than couldbe provided by the use of serrations such as used in the grip-bar andpermit of the drill being adjusted to a greater number of positions.

27 refers to an anchor-shoe having the tapered or Wedge' portion 28 andthe portions 29 and 30, the portion 30 extending'beyond the bodyportion29 a suitable distance and provided with a rectangular socket 3ltherein, and 32 is an aperture vpassing through the anchor, as shown. Indrilling coal or other material it is necessary to support and brace thegrip-bar in a positive manner. This has been done heretofore in variousWays; but I am not aware that au anchor of the character described'hasever been used which may be first driven into the' material and thenfastening the grip-bar to the same. This is accomplished as follows: Theprovision of the Wedge makes it easy to hammer it into the coal orroclnandvthe provision of the olfsct 29 Iof the anchor provides a seatby which the same may be hammered into the material, and when securelyfastened therein the end of the grip-bar may be inserted into the socket31 of the extension 30, and the bar havingan aperture 33 through thesame a pinv or similar device 34 is dropped through the aperture 32 andthrough the aperture 33 ofthe bar, which locks it rmly to the anchor.

While I havevshown that thegrip-bar is detachably connected to theanchor by being inserted in the notch 3l, it is to be understood thatthe extension 30 may be so arranged that it may be inserted into thegrip-bar and locked instead of the bar being insl red into the socket31.

The manner of coupling the boxings and yoke makes it possible to shiftthe boxing and drill-rod to any angle coming in range of the movement ofthe semicireular extension thereof. vAs it will be seen, the grip-bar isfirmly secsred in the coal or rock. By removing the4 yoke-pin, so thatthe extension 23 is free of the yoke and boxing, the drill-rod may bemoved to a suitable angle, as the boxing is free to swing on theextension 22 of the yoke-pin, and when in position the eX- tension 23may be again made to engage the aperture 24 and the yoke and4corresponding notch in the semi'circular extension of the boxing, whichlocks the parts firmly together in the manner shown.

' By supporting the drill on a bar-of the character shown it has theadvantage after the thread-bar has been advanced in the feednut itslength toppen the upper section of the hinged boxing and advance Atheboxin'g on the grip-baruntil the nut again engages the forward end ofthe threaded bar and the drill is in positionv to,l advance the augerits 'full length -into the coal or rock when ad-v j usted at properangles.

I have provided a novel support for the rear end of the grip-bar, whichcomprises a support 35, having a rectangular bearing 36 to be slippedover the rear end of the bar in the manner shown in Fig. 1' and tied tothe same by means of a pin 37j or similar device, passing through anaperture 3S in the support and a serration of the bar, and extendingdown from the bearing is shown a perforated bar or rod 3D, telescopinginto a support 40, with bifurcated extensions 4l, the same held inadjusted positions on the bar 39 by a pin 42, passing through thesupport 40 and bar 39.

Diverging'from the upper face'of the bearing 36 is shown a frameofbifurcated sections 42, arranged to straddle. the thread-bar andcentering into a common spindle 43, which is threaded and provided witha hand-wheel 44, and telescoping onto the spindle is a movable section45, adjustableby the movement of the hand-wheel, substantially as shownin the drawings.

I do not Wish to be limited to the details of construction andarrangement of parts as herein described and illustrated, as it isobvious that various changes may be made in the construction of parts asto details Without affecting the principle and scope of inventionherein. i

Having thus fully described my invention, WhatI claim, and desire tosecure by Letters Patent of the United States, is-

y l. A drilling-machine, comprisinga boxing of two hinged sections, asemicircular extension of one section, a `memberpivotally connected withthe boxing and a grip-bar adjustably securedin said member and means oflocking said grip-bar and said semicircular extension,.substantially inthe manner described.

2. A drilling-machine, comprising a boxing of two hinged sections, asemicircular extension of one section and an aperture transverselyarranged therein, a member provided with a rectangular body anddiverging arms` pivotally fixed to the boxing, a grip-bar engaging therectangular body of the member and means for connecting the memberandboxing and locking the bar` to the rectangular body, substantially asdescribed.

IIO

3. A drilling-machine, comprising a twopart boxing, having a feed-nut, asemicircular extension of the boxing having a serrated edge, atransverse aperture through the extension, of a member. having daredextensions straddlin g the serrated extension of the boxing and arectangular body portion, a grip-bary arranged to be carried inthereotangular body of the member anda yoke-pin for locking the memberto the boxing and the bar to the member, substantially as described.

4. A drilling-machine, comprising a feednut substantiallyas shown, asemicircular extension of the nut provided with 'a notched edge, and atransverse aperture therein, a

'member provided with a rectangular body straddling the semicircularextension and an aperture cutting through' the rectangular body, agrip-bar arranged to'be carried in the gage the apertnrevoftherectangniar body and serrations of the bar and coincident notch ofthe extension of the feed-nut, snbstantaii y as described. l f

5. A drilling-machine, comprising a feednnt, a member comprising arectangular body and diverging arms etraddling' the feed-nut andpivotally connected to said feed-nut, a grip-bar adjustably secured insaid rectanguiar body, au anchor for the forward end of the bar andmeans of connecting the bar to the anchor and the means for supportingthe opposite end of the bar, substantially as descn'bed.

6; In combination with a tWo-partboxing and a feednut, a thread-bar andmechanism for actuating said bai', a grip-bar support for said feed-nut,comprising abai` having one edge serrated, a membei` vsiidabiy arrangedon the' bar and having connection with. an extension of the feed-nuthaving a serrated edge and in such a manner as to permit the nut4 toswing in its support, a device for locking the member and bar throughthe serrations in the bar and said extension, ananchor-supportdetaehably connected with thel forward end of the bar, and adj ustabiesupporting. means snbstantiaily as shown for the rear end of said bar,substantially 'as described.

In Witness whereof I affix my signature in presence of two witnesses.

' ISAAC VVANTLING.

Witnessesi A GHAs. W. LA PORTE, WALTER H. KIRK.

